linux-kernel - Re: [patch] oom: print triggering task's cpuset and mems allowed

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 28 Oct 2008 14:42:34 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	David Rientjes <rientjes@...gle.com>
Cc:	menage@...gle.com, linux-kernel@...r.kernel.org
Subject: Re: [patch] oom: print triggering task's cpuset and mems allowed

On Tue, 28 Oct 2008 09:08:15 -0700 (PDT)
David Rientjes <rientjes@...gle.com> wrote:

> +#define CPUSET_NAME_LEN		(128)
> +#define	CPUSET_NODELIST_LEN	(256)
> +static char cpuset_name[CPUSET_NAME_LEN];
> +static char cpuset_nodelist[CPUSET_NODELIST_LEN];
>
> ...
>
> +	snprintf(cpuset_name, CPUSET_NAME_LEN,
> +		 dentry ? (const char *)dentry->d_name.name : "/");

nit: this requires that the reviewer (and the maintainer) ensure that
CPUSET_NAME_LEN=sizeof(cpuset_name).  This must be done manually and
introduces risk.

Better would be:


static char cpuset_name[128];

...

	snprintf(cpuset_name, sizeof(cpuset_name), ...);

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/